main()
{
    int i, j, k, l, m, n;
    printf("Input two FENSHU :\n");
    scanf("%d/%d,%d/%d", &i, &j, &k, &l);
    m = zxgb(j,l)/j * i;
    n = zxgb(j,l)/l * k;
    if(m>n)        printf("%d/%d > %d/%d\n",i,j,k,l);
    else if (m==n) printf("%d/%d = %d/%d\n",i,j,k,l);
       else        printf("%d/%d < %d/%d\n",i,j,k,l);
}
zxgb(a,b)
     int a,b;
     {
        long int c;
        int d;
        if (a<b)c=a, a=b, b=c;
        for ( c=a*b; b!=0; )
        {
            d=b;    b=a%b;    a=d;
        }
        return ((int)c/a);
     }